On the afternoon of March 28, 2017, the Second Lecture of Oriental Legal Forum, jointly organized by the Department of Jurisprudence and the Department of Legal History of CASS Law Institute, was held at the Institute. The lecture, entitled “1864-1894: Lost Thirty Years of Extraterritoriality in China”, was given by Professor Gao Hancheng, an associate research fellow at the Department of Legal History, presided over by Professor Zhang Sheng, the head of the Department of Legal History, and attended by over a dozen researchers, Ph.D. candidates and graduate students. In the lecture, Professor Gao introduced the evolution of the concept of “extraterritoriality” in modern Chinese history and analyzed Chinese people’s understand and response to the issue of “extraterritoriality” during the 30 years between 1864 and 1894. He pointed out that, during this period of time, the Qing Government’s response to “extraterritoriality” was only limited to criticism. It had neither the will nor the ability to solve this problem. This “ostrich strategy” reflected the Qing Government’s position of refusing to integrate itself into the system of public international law and opposing the deepening of reform and opening up to the outside world. After the lecture, Professor Zhang Sheng gave a summarization of and made comments on the main points of the lecture and the participants carried out heated and in-depth discussion on such questions as whether “extraterritoriality” is a sovereign power or governing power, whether “extraterritoriality” had actual promoted the legal reform in China in late Qing Dynasty, and how to treat “western experiences”.